Seam-rubbing and welt-protecting machine.



' Patented lune l2, I900, J. G. MGCARTEB & T. HANSEN.

SEAM RUBBING AND WELT PROTECTING MACHINE.

(Application filed Dec. 26, 1889.)

No. s5|,424.

(N0 Mdel.)

, N WITNESSES. INVENTEIRS. 6%.W v fiW m: Nbwms PETERS 00.. vnofou'mnu\NASNINGTON. u c.

UNITED STATES PATENT OFEIGE;

JOHN G. MOOARTER, OF HYDE PARK, AND THORVALD HANSEN, OF

EVERETT, MASSACHUSETTS.

SEAM-RUBBING AND WELT-PROTECTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 651,424, dated June 12,1900.

Application filed December 26, 1899. Serial No. 741,561. (No model.)

To all whm'n it may concern:

Be it known that we, JOHN G. MCOARTER, residing in Hyde Park, in thecounty of Norfolk, and THORVALD HANSEN, residing in Everett, in thecounty of Middlesex, State of Massachusetts, citizens of the UnitedStates, have invented an Improvement in Seam-Rubbing andVVelt-Protecting Machines,0f which the following description, inconnection with the accompanying drawings,is a specification, likeletters and figures on the drawings representing like parts.

This invention relates to a machine for rubbing down seams of boots andshoes and is an improvement upon the machine shown and described inUnited States Patent No. 622, 252, granted to us April at, 1899.

The present invention has for its object to provide feed rolls or wheelson opposite sides of the welt-guide, which feed-rolls are positivelydriven and yet are free to yield independent of each other, so as tocompensate for difierent thicknesses of stock. The positively-driven andyielding feed-rolls act to not only assist in the feeding of the upper,but also act to press the upper down over the welt-seam, therebyimparting to the said upper the shape desired. These and other featuresof this invention will be pointed out in the claims at the end of thisspecification.

Figure 1 is a side elevation, with parts broken away, of awelt-seam-rubbing-down machine embodying this invention; Fig. 2, a frontelevation of the machine shown in Fig. 1; Fig. 3, a sectional detail onthe line 3 3 to be referred to, and Fig. 4 a sectional detail of theyielding feed rolls.

The rubbing-down disk or wheel-a, fast on the shaft 1), driven from thecounter-shaft c by gear d and pinion e, and the feed-wheels f g, looseon shaft 1) and driven from the counter-shaft c by pinions h 2' andgears j 70, and the intermediate gears m, carried by the hollow arm n,pivotall y mounted on the shaft 0 and normally held in its elevatedposition by thelocking device p, engaging the screw q, carried by thearm rof the elbow-lever mounted on the pivot s and having its arm 75connected to a foot-treadle (not shown) bya rod 'Lb and acted upon by aspring '12, are and may be the same as shown in the patentabove referredto. I

The overhanging arm 2 carries a yielding welt-guide 3, which cooperateswith the rubbing-down disk at, and in accordance with this invention theoverhanging arm 2 also carries independently-yielding andpositivelydriven feed wheels or rolls 4 5, located on opposite sides ofthe welt-guide and cooperating with the feed-wheels f g. The feed-wheels4 5 are loosely mounted on suitable studs 6 7, (see Fig. 4,) extendedfrom the slide-bars 8 9, which are provided with threaded rods 10 11,forming extensions of said bars. The threaded rods 10 11 are extended upthrough-openings in the top plate 12 of the arm 2 and also up throughthe cross-bar 13 of a cap or yoke 14, and said rods are encircled bysprings 15 16, which are adj nstable by exteriorly-threaded sleeves 1718 engaging screw-threads in the top plate 12. The springs 15 16 act toforce the slide-bars 8 9 and the feed-wheels 4 5 downward, and thisdownward movement may be controlled by nuts 19 20,. which engage thethreaded rods 10 11 above the crossbar 13. The slide-bars andfeed-wheels are thus limited as to their downward movement, but are freeto be moved upward by the leather interposed between them and the hol-10w arm n, the springs 15 16 acting to hold the feed-wheels inengagement with the upper of the boot or shoe with a yielding pressurewhich can be regulated to the particular, stock being operated upon andwhich is sufficient to lay over or conform the upper to the welt-seam.

The feed-wheels 4t 5 may be positively driven by mechanism,as will nowbe described. Each feed-wheel is pinned or otherwise fastened to a gear22, loose on its stud or shaft, and the said gear is driven by gears orpinions 23 24 25 from ashaft 26, having thereon a sprocketwheel 27,which is connected by a link chain 28 with a sprocket-wheel 29 on ashaft 30, driven from the shaft 0 by gears 31 32. The tension of thesprings 15 16 may be regulated by the nuts or threaded sleeves 1718.

The welt-guide 3 is secured to the threaded rod 30, encircled by aspring 31, which is adjusted by a threaded sleeve or nut 32, and

the downward movement of the welt-guide by the spring 31 is limited bythe nuts 33.

In operation the upper of the boot or shoe is slipped over the horn ormovable arm 12, right side out, and the Welt enters the groove or slot35 in the welt-guide 3, and the machine being set in motion the upper ispositively fed forward in the direction indicated by the arrow 50, Fig.1, by the positivelydriven feed-rollsf g engaging the inner side of theupper and by the positively-driven feed-rolls 4 5 engaging the outerside of the upper on opposite sides of the welt and in a substantiallyvertical line with the feed wheels or rolls f g, which insures the upperbeing laid over or pressed down upon the welt-seam and imparting to thesaid upper the ogee shape desired without the necessity of subsequentoperations.

The independently-yielding feed-rolls 4 5 adapt themselves toinequalities in the stock, and by positively driving said rolls theupper maybe quickly and easily fed through the ma chine and the workperformed in a minimum time.

We claim- 1. In a machine of the class described, the combination with arubbing-down wheel or roll adapted to engage the inner side of theupper, of yielding feed-rolls arranged side by side but separated fromeach other and adapted to engage the outer side of the said upper onopposite sides of the rubbing-down wheel or roll, substantially asdescribed.

. 2. In a machine of the class described, the combination with arubbing-down Wheel or roll adapted to engage the inner side of theupper, of yielding feed-rolls arranged side by side butseparated fromeach other and adapted to engage the outer side of said upper onopposite sides of the rubbing-down wheel or roll, and means topositively rotate said feedrolls, substantially as described.

3. In a machine of the class described, the combination with a frameworkhaving a weltguide, of an arm supported by said framework and movabletoward and from said weltguide, a rubbing-down tool and feed-wheelscarried by said arm, means to rotate said tool andfeed-wheels,independently-yieldin g feedrolls carried by said frameworkon opposite sides of said welt-guide, and means to positively rotate thefeed-rolls carried by said framework, substantially as described.

4. In a machine of the class described, the combination with aWelt-guide, of independently-yielding feed-rolls located on oppositesides of said welt-guide, substantially as described.

5. In a machine of the class described, the combination with awelt-guide, of independently-yielding feed-rolls located on oppositesides of said welt-guide, and means to positively rotate saidfeed-rolls, substantially as described.

6. In a machine of the class described, the combination with a rotaryrubbing-down tool, feed-Wheels located on opposite sides of said tool,means to rotate said tool and feed- Wheels, a welt-guide cooperatingwith said rubbing-down tool, independently-yielding feed-wheels or rollslocated on opposite sides of the welt-guide, and means to positivelyrotate said feed-rolls,substan tially as d escribed.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

JOHN G. MCCARTER. THORVALD HANSEN. I'Vitnesscs:

J AS. I-I. CHURCHILL, .T. MURPHY.

